CN103302102B - Roll gap leveling method for steel strip finishing mill - Google Patents
Roll gap leveling method for steel strip finishing mill Download PDFInfo
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- CN103302102B CN103302102B CN201310170332.XA CN201310170332A CN103302102B CN 103302102 B CN103302102 B CN 103302102B CN 201310170332 A CN201310170332 A CN 201310170332A CN 103302102 B CN103302102 B CN 103302102B
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Abstract
The invention relates to a roll gap leveling method for a steel strip finishing mill, belonging to the technical field of steel strip production in the metallurgical industry. The technical scheme is that the roll gap leveling method comprises the steps of 1) preparing a detection steel plate, wherein the width of the check steel plate is 500-1000mm, the length is 300-500mm and the thickness is 2.5-4.25mm; 2) feeding the check steel plate into a roll gap of the steel strip finishing mill and pressing downwards by using 300 plus or minus 30 ton rolling force; 3) measuring thickness difference of the two side surfaces of the check steel plate, when the thickness difference of the check steel plate is smaller than 10mm, leveling the roll gap according to three times of the thickness difference of the two side surfaces of the check steel plate, after which a steel strip can be rolled; 4) when the thickness difference of the two side surfaces of the check steel plate is more than or equal to 10mm, repeating the operations. The roll gap leveling method for the steel strip finishing mill has the positive effects that the problems of steel strip wastage, production shutdown and the like for a reason that the automation level of the finishing mill is not high or the roll gap of the finishing mill is uneven due to equipment aging and the like can be effectively improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of band steel finishing mill roll gap leveling method, particularly be with steel production equipment automaticity not high, or because the reasons such as ageing equipment cause finishing stand acyclic homologically trioial to be forbidden, need, to the leveling of band steel finishing mill roll gap, to belong to metallurgy industry technical field of steel strip production.
Background technology
In metallurgy industry band steel is produced, finishing mill all needs to carry out leveling to working roll roll gap after having changed working roll and backing roll, realize finishing stand acyclic homologically trioial, but sometimes due to milling equipment automaticity is not high or due to the reasons such as ageing equipment cause finishing stand acyclic homologically trioial forbidden, therefore need to carry out leveling working roll roll gap by householder method, usual way is that pressure copper rod carries out leveling, this method one consumes a large amount of copper rods, cause the increase of production cost, affect the competitiveness of product, two are forbidden due to finishing stand acyclic homologically trioial and are caused waste product, impact is normal produces.
Summary of the invention
The object of this invention is to provide a kind of band steel finishing mill roll gap leveling method, by laminated steel, measure the thickness difference of steel plate two sides, realize the leveling of finishing mill roll gap, solve the problems referred to above that background technology exists.
Technical scheme of the present invention is:
A kind of band steel finishing mill roll gap leveling method, comprises the steps:
1. preparation detects steel plate, and detection steel plate width is 500-1000mm, and length is: 300-500mm, and thickness is: 2.5-4.3mm;
2. after having changed band steel finishing mill working roll and backing roll, working roll inlet guide is adjusted to 10-20mm wider than detection steel plate width, steel plate will be detected and send in band steel finishing mill roll gap, and use 300 ± 30 tons of roll-forces to depress, and Non-follow control roll rotation, rolled detection steel plate;
3. take out and detect steel plate, measure the thickness difference detecting steel plate two sides, when detecting steel plate thickness of two sides difference and being less than 10mm, carry out leveling according to 3 times of detecting steel plate two sides thickness difference, realize the leveling of band steel finishing mill roll gap, get final product steel rolling;
4. when detecting steel plate two sides thickness difference and being more than or equal to 10mm, repeat aforesaid operations, until detect steel plate thickness of two sides difference to be less than 10mm, and carry out leveling according to 3 times that detect steel plate two sides thickness difference.
Described detection steel plate, selects the steel grade compared with softwood matter, and when adopting Q235 straight carbon steel material, its thickness is 2.5-4.25 mm; When adopting S08Al, SPHD series steel plate, its thickness is 2.75-4.0 mm, and detect steel plate edge polishing level and smooth, prevent the wearing and tearing of the protruding breaker roll on surface, damage is caused on breaker roll surface, reduces the service life of roll.At feeding steel plate to finishing mill roll gap with take out in steel plate process and will note inherently safe, prevent the security incident of damaging, squeezing wound, falling, acoustic warning of simultaneously will blowing a whistle when manually changing trains or buses, and look for around special messenger to frame and confirming, prevent sudden hurt accident.
The described steel plate that will detect is sent in band steel finishing mill roll gap, and use special seben instrument to carry out, this instrument is made up of handle, push rod and pusher dog, one end of handle is provided with push rod, push rod and handle are arranged vertically, and push rod is symmetrical arranged two pusher dogs, pusher dog is splayed.
Described taking-up detects steel plate, uses special-purpose taking plate instrument to carry out, this instrument by getting wrench handle, hinge, jaw form, two ends of getting wrench handle are connected with jaw by hinge, and described jaw is arc-shaped.
Good effect of the present invention is: effectively can improve because milling equipment automaticity is not high or cause finishing mill roll gap regulation uneven due to reasons such as ageing equipments, thus cause steel scrap or produce the problems such as shutdowns, reduction production cost.
Accompanying drawing explanation
Fig. 1 is seben specific purpose tool front view of the present invention;
Fig. 2 is seben specific purpose tool side view of the present invention;
Fig. 3 is seben specific purpose tool top view of the present invention;
In figure: handle 1, push rod 2, pusher dog 3;
Fig. 4 is that the present invention gets plate specific purpose tool front view;
Fig. 5 is that the present invention gets plate specific purpose tool top view;
In figure: get wrench handle 4, hinge 5, jaw 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
A kind of band steel finishing mill roll gap leveling method, comprises the steps:
1. preparation detects steel plate, detects steel plate material, size in table 1.Detect steel plate edge polishing level and smooth, prevent the wearing and tearing of the protruding breaker roll on surface, damage is caused on breaker roll surface, reduces the service life of roll.At feeding steel plate to finishing mill roll gap with take out in steel plate process and will note inherently safe, prevent the security incident of damaging, squeezing wound, falling, acoustic warning of simultaneously will blowing a whistle when manually changing trains or buses, and look for around special messenger to frame and confirming, prevent sudden hurt accident;
2. after having changed band steel finishing mill working roll and backing roll, adjustment working roll inlet guide width dimensions is in table 1, to detect steel plate uses seben specific purpose tool to send in band steel finishing mill roll gap, then depress, roll gap change is kept a close eye on when depressing, forbid roll-force to be pressed onto excessive, concrete roll-force is in table 1, Non-follow control roll rotation, rolled detection steel plate, before Non-follow control roll rotation, safety verification must be carried out by special messenger and belling is warned after more than three times and can manually be changed trains or buses, steel plate is stopped operating after the transfer of finishing mill roll gap goes out;
With reference to Fig. 1,2,3, described seben specific purpose tool, this instrument is made up of handle 1, push rod 2 and pusher dog 3, and one end of handle is provided with push rod, and push rod and handle are arranged vertically, and push rod is symmetrical arranged two pusher dogs, pusher dog is splayed.
3. take out and detect steel plate, the safety pin of finishing stand to be plugged in advance and confirm that whether kink safety pin is safe and reliable, measure the thickness difference detecting steel plate two sides, be sure not direction to take instead, when detecting steel plate thickness of two sides difference and being less than 10mm, carry out leveling according to 3 times of detecting steel plate two sides thickness difference, concrete data are in table 1, realize the leveling of band steel finishing mill roll gap, take off the kink safety pin test run of finishing stand, and can normally steel rolling;
With reference to Fig. 4,5, described taking-up detects steel plate, uses special-purpose taking plate instrument to carry out, this instrument by getting wrench handle 4, hinge 5, jaw 6 form, two ends of getting wrench handle are connected with jaw by hinge, and described jaw is arc-shaped, are convenient to card column and detect steel plate;
4. when detecting steel plate two sides thickness difference and being more than or equal to 10mm, repeat aforesaid operations, until detect steel plate thickness of two sides difference to be less than 10mm, and carry out leveling according to 3 times that detect steel plate two sides thickness difference, take off the kink safety pin test run of finishing stand, and can normally steel rolling.
The present invention has four embodiments, and each embodiment design parameter is in table 1.
Table 1
Make in this way, effectively can improve because milling equipment automaticity is not high or cause finishing mill roll gap regulation uneven due to reasons such as ageing equipments, thus cause steel scrap or produce the problems such as shutdowns, reduction production cost.
Claims (4)
1. be with a steel finishing mill roll gap leveling method, it is characterized in that comprising the steps:
1. preparation detects steel plate, and detection steel plate width is 500-1000mm, and length is: 300-500mm, and thickness is: 2.5-4.25mm;
2. after having changed band steel finishing mill working roll and backing roll, working roll inlet guide is adjusted to 10-20mm wider than detection steel plate width, steel plate will be detected and send in band steel finishing mill roll gap, and use 300 ± 30 tons of roll-forces to depress, and Non-follow control roll rotation, rolled detection steel plate;
3. take out and detect steel plate, measure the thickness difference detecting steel plate two sides, when detecting steel plate thickness of two sides difference and being less than 10mm, carry out leveling according to 3 times of detecting steel plate two sides thickness difference, realize the leveling of band steel finishing mill roll gap, get final product steel rolling;
4. when detecting steel plate two sides thickness difference and being more than or equal to 10mm, repeat aforesaid operations, until detect steel plate thickness of two sides difference to be less than 10mm, and carry out leveling according to 3 times that detect steel plate two sides thickness difference.
2. band steel finishing mill roll gap leveling method according to claim 1, is characterized in that described detection steel plate, and when adopting Q235 straight carbon steel material, its thickness is 2.5-4.25 mm; When adopting S08Al, SPHD series steel plate, its thickness is 2.75-4.0 mm.
3. the band steel finishing mill roll gap leveling method according to claim 1 or 2, it is characterized in that the described steel plate that will detect is sent in band steel finishing mill roll gap, special seben instrument is used to carry out, this instrument is made up of handle (1), push rod (2) and pusher dog (3), one end of handle is provided with push rod, push rod and handle are arranged vertically, and push rod is symmetrical arranged two pusher dogs, pusher dog is splayed.
4. the band steel finishing mill roll gap leveling method according to claim 1 or 2, it is characterized in that described taking-up detects steel plate, special-purpose taking plate instrument is used to carry out, this instrument by getting wrench handle (4), hinge (5), jaw (6) form, two ends of getting wrench handle are connected with jaw by hinge, and described jaw is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310170332.XA CN103302102B (en) | 2013-05-10 | 2013-05-10 | Roll gap leveling method for steel strip finishing mill |
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| CN201310170332.XA CN103302102B (en) | 2013-05-10 | 2013-05-10 | Roll gap leveling method for steel strip finishing mill |
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| CN103302102A CN103302102A (en) | 2013-09-18 |
| CN103302102B true CN103302102B (en) | 2015-01-07 |
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| CN105080962A (en) * | 2015-08-21 | 2015-11-25 | 内蒙古包钢钢联股份有限公司 | Gasket calibrating method for 310 z-type steel breakdown mill |
| EP3208673B1 (en) * | 2016-02-22 | 2019-06-05 | Primetals Technologies Austria GmbH | In-line calibration of the roller gap of a roller stand |
| CN108356080B (en) * | 2018-02-02 | 2020-06-02 | 包头钢铁（集团）有限责任公司 | Pre-swing leveling method for roll gap |
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| JPH0760309A (en) * | 1993-08-26 | 1995-03-07 | Mitsubishi Heavy Ind Ltd | Rolling mill and method for rolling steel strip |
| CN102085535B (en) * | 2009-12-03 | 2012-11-14 | 唐山国丰钢铁有限公司 | Leveling control method of finishing mill |
| CN201862630U (en) * | 2010-11-04 | 2011-06-15 | 新疆八一钢铁股份有限公司 | Multipurpose sample plate for quick slot arrangement of rolling mill roll gap |
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Address after: 064200 South Road, Zunhua City, Tangshan City, Hebei Province, No. 32 Patentee after: Tangshan Jianlong Special Steel Co., Ltd. Address before: 064200 South Road, Zunhua City, Tangshan City, Hebei Province, No. 32 Patentee before: Jianlong Industrial Co., Ltd., Tangshan City |
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Effective date of registration: 20210322 Address after: No.32, Jianshe South Road, Zunhua City, Tangshan City, Hebei Province 064200 Patentee after: TANGSHAN JIANLONG JIANZHOU STEEL Co.,Ltd. Address before: No.32, Jianshe South Road, Zunhua City, Tangshan City, Hebei Province 064200 Patentee before: TANGSHAN JIANLONG SPECIAL STEEL Co.,Ltd. |